At Least a dozen volcanic domes can be seen in this 75 kilometer (46 miles) by 45 kilometer (28 miles) area on Venus located in a plains region at latitude 25.0 degrees north and longitude 330.6 degrees east. Several of them have small summit craters. Five of them also exhibit a slightly brighter area stretching south-west from the dome into the surrounding plains. It is thought that this is indicative of a local wind direction of north-east to south-west, although the mechanism responsible for the brightening is not understood. It may be due to pyroclastic material ejected from the volcano and carried downwind or to the bright area having a different surface texture due to it lying in the wind shadow of the mountain. If these bright areas are indicative of the local wind direction, then it may be possible to use them to map the global wind patterns. Steep slopes and small-scale surface roughness associated with fractures are thought to be responsible for the bright lineament pattern in the plains surrounding the domes.
